Taxonomy of the Ranatra biroi group sensu Lansbury, 1972 (Nepomorpha: Nepidae), with descriptions of two new species Author Tran, A. D. Author Zettel, H. text Raffles Bulletin of Zoology 2021 2021-12-03 69 507 521 journal article 10.26107/RBZ-2021-0068 2345-7600 7174619 F6D44BD6-1F2A-4DBE-9226-D099FF6E0817 Ranatra longipes longipes Stål, 1861 ( Fig. 4A ) Ranatra longipes Stål, 1861: 203 ( type locality: Java , Indonesia ). Material examined. SINGAPORE : 1 male , 1 female ( ZRC .6.15400–01), Buona Vista Road, fish pond, [coll. unknown], [date unknown] . BRUNEI : 2 males , Brunei , Damuan River , lowland stream, 04°51′N , 114°48′E ( GPS ), coll. H. Zettel , 14 June 2007 (4) ( NHMW ). MALAYSIA – West: – Selangor : 1 male , N. Selangor , peat swamp forest, coll. P. K. L. Ng , September 1992 ( ZRC ) . – Johor : 1 male , Johor , Tg. Sedili, S . Selangi , coll. Chia Yi , 22 April 1992 , 792B ( ZRC ) ; 1 male , 1 female , Johor , between Pekan Nanas to Pontian , no vegetation, coll. K. L. Yeo , 4 March 1992 , #Y781B ( ZRC ) ; 1 male , 1 female , Johor , 8 km fr. Pontian , Prt Sikom , coll. K. L. Yeo et al., 14 May 1992 , 796c ( ZRC ) ; 1 male , Johor , Ayer Baloi , coll. C. M. Yang & K. L. Yeo , 4 March 1992 ( ZRC ) ; 1 male , Johor , stream between 35 and 36 milestones along Mersing to Kluang Road , coll. P. K. L. Ng , June 1985 ( ZRC ) . Schödl, 11 February 1991 (12a) ( NHMW ) ; 1 male , West Sumatra , Nature Reserve Harau, 90 km from Padang Panjang, coll. Bujang , 1991 ( NHMW ) ; 1 male , West Sumatra , Solok , [coll. unknown], July 1992 ( NHMW ) . INDONESIA – Java : 1 male , 2 females , Java , Bogor , Ciomas , coll. H. H. Tan , 10 July 1996 , THH9667 ( ZRC ); 3 males , 3 females , Java , Yogyakarta , Kali Progo , coll. T. B. Lim , 28 June 1997 , JV0006A ( ZRC ); 2 males , 4 females , Java , Yogyakarta , Kali Progo , coll. T. B. Lim , 29 June 1997 , JV0006B ( ZRC ); 1 male , Java , Yogyakarta , Gampulong , coll. T. B. Lim , 29 June 1997 , JV0007 ( ZRC ); 1 male , 1 female , West Java , Bogor , coll. Hamann , 195[!] ( NHMW ) . MALAYSIA – Sarawak : 1 male , Sarawak , Miri , coll. H. H. Tan , 26 September 1996 , THH96111 ( ZRC ); 1 male , 1 female , Sarawak , Marudi , coll. H. H. Tan , 27 September 1996 , THH96114 ( ZRC ); 1 male , 1 female , Sarawak , MK94-55 ( ZRC ) . – Sabah : 3 males , 2 females , 4 nymphs ( ZRC .6.18700), Sabah , Sg. Kinabatangan , puddle nr. Danau Biandum Besar , coll. H. K. Lua & C. Y. Chang , 12 April 1994 , LHK237; 2 males , 3 females , Sabah , 10–12 km before Beaufort on Kota Kinabalu to Beaufort road, peat swamp, blackwater, coll. P. Ng & R. Stuebing , 29 December 1992 ( ZRC ) . Fig. 4. Parameres of Ranatra species. A , R. longipes longipes , from Brunei; B, R. cardamomensis , from Natuna Island (ZRC_ ENT00013061); C, R. cardamomensis , from southern Thailand (ZRC_ENT00013063). B, C same scale. Note that the paramere hook of the Thai specimen (Fig. 4C) recurved further after being dry-mounted from an alcohol-preserved specimen; while still in alcohol, the apex was same as that in the type specimens. INDONESIA – East Kalimantan : 1 male , Kalimantan Timur , Mahakam basin, coll. H. H. Tan & D. Wowor , 2 December 1999 , THH99106 ( ZRC ); 1 male , 5 females , Kalimantan Timur , Mahakam basin, coll. H. H. Tan & D. Wowor , 10 November 1999 , THH9973 ( ZRC ); 1 male , 2 females , Kalimantan Timur , Mahakam basin, coll. H. H. Tan & D. Wowor , 11 November 1999 , THH9977 ( ZRC ) . INDONESIA – Sumatra : 2 males , 3 females , Sumatra , Jambi , coll. H. H. Tan , 24 July 1997 , THH9741 ( ZRC ) ; 1 male , Sumatra , Jambi , Pijoan , Danau , Setpadang , coll. H. H. Tan , 8 June 1996 , THH9649 ( ZRC ) ; 1 male , 1 female , S. Sumatra , Sg. Sentang , coll. H. H. Tan , 27 July 1997 , THH9744 ( ZRC ) ; 3 males , 5 females , Sumatra , ca. 80 km south of Medan , coll. H. H. Tan , 15 June 1996 , THH9659 ( ZRC ) ; 16 males , 18 females , 1 nymph, Sumatra , Jambie , coll. H. H. Tan , 6 June 1996 , THH9644 ( ZRC ) ; 1 male , Sumatra , Jambi , Danau Pinang , lake in forest connected to Sg. Pijoan , coll. M. Kottelat & H. H. Tan , 28 May 1994 , MK94-30 ( ZRC ) ; 1 male , Sumatra , Lemba Harau , coll. S . INDONESIA – Kundur Island : 1 male , 1 female , 1 nymph, Kundur I. , Riaus Is. , Parit Gantung Sebesi , Tg. Batu Dist. , coll. H. K. Lua & D. Wowor , 12 October 1998 , LHK0397 ( ZRC ) ; 2 males , 1 female , Kundur I. , Riaus Is. , about 7 km from Tg. Batu , coll. H. K. Lua & D. Wowor , 13 October 1998 , LHK0398 ( ZRC ) . INDONESIA – Lombok Island : 1 male , Lombok , Suranadi , coll. M. A. Jäch , 3 February 1988 (14) ( NHMW ) . Diagnosis. Body length: males 21.5–25.5, females 24.0–27.0; siphon length ca. 0.65–0.85× body length; lorum about as high as clypeus; vertex higher than eye, with low conical tubercle; eye width ca. 1.2× interocular width; space between middle coxae about 0.9× space between hind coxae; posterior margin of metasternum convex; hind femur, when folded back parallel to body, slightly surpassing apex of operculum (in both sexes); paramere slender, apical hook strongly recurved, inner margin of hook with incipient obtuse elevation, tip of hook usually truncated. Remarks. Tran & Polhemus (2012) reported that the distribution of R. longipes longipes overlaps with that of R. thai in the southern part of Peninsular Malaysia ( Johor ) only, and that it does not extend to the northern part of Peninsular Malaysia . Here, we report the first record of this subspecies from Selangor , in western Peninsular Malaysia . This record suggests further overlap between the distribution ranges of R. longipes longipes and R. thai . Distribution. Peninsular Malaysia ( Johor ; first record for Selangor ), Singapore , Borneo, Sumatra , Java , Bali , Sulawesi Tenggara ( Lansbury, 1972 ; Nieser & Chen, 1991 ; Tran & Polhemus, 2012 ; Polhemus & Polhemus, 2013 ). First records for Lombok and Kundur ( Indonesia ).